feat: upgrade to Ulmo release

Upgraded environment to Open edX Ulmo release.
- Bumped Tutor core requirement to v21.0.0 (Ulmo)
- Updated tutor-jupyter plugin to Ulmo-compatible version
- Synced MFEs and plugin dependencies with Ulmo stack
- Created new branch from main to integrate all latest changes into Ulmo release

This upgrade ensures compatibility with the Open edX Ulmo ecosystem and its dependency set.

Author: Abdul Muqadim

CHANGELOG.md

@@ -19,6 +19,18 @@ instructions, because git commits are used to generate release notes:
 
 <!-- scriv-insert-here -->
 
+<a id='changelog-21.0.0'></a>
+## v21.0.0 (2025-11-03)
+
+- 💥[Deprecation] Remove preview sites from allowed embedding pages as the preview page has been migrated to the learning MFE. (by @Danyal-Faheem)
+
+- [Bugfix] Fix cookies issues by upgrading nbgitpuller version. (by @Abdul-Muqadim-Arbisoft)
+
+- [Improvement] Migrate from pylint and black to ruff. (by @Abdul-Muqadim-Arbisoft)
+- [Improvement] Test python package distribution build when running make test. (by @Abdul-Muqadim-Arbisoft)
+
+- 💥[Feature] Upgrade to Ulmo. (by @Abdul-Muqadim-Arbisoft)
+
 <a id='changelog-20.0.0'></a>
 ## v20.0.0 (2025-06-10)
 

changelog.d/20250521_190353_danyal.faheem_remove_preview.md

@@ -27,15 +27,15 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
-  "tutor>=20.0.0,<21.0.0",
-  "tutor-mfe>=20.0.0,<21.0.0"
+  "tutor>=21.0.0,<22.0.0",
+  "tutor-mfe>=21.0.0,<22.0.0"
 ]
 # these fields will be set by hatch_build.py
 dynamic = ["version"]
 
 [project.optional-dependencies]
 dev = [
-  "tutor[dev]>=20.0.0,<21.0.0",
+  "tutor[dev]>=21.0.0,<22.0.0",
   "ruff",
 ]
 

changelog.d/20250722_135840_abdul.muqadim_nbgitpuller_version_upgrade.md

@@ -1 +1 @@
-__version__ = "20.0.0"
+__version__ = "21.0.0"